/Engine/Source/Runtime/Engine/Classes/Engine/AssetManager.h
and the managers will be reported in the OutConflictIds field.
EPrimaryAssetCookRule CalculateCookRuleUnion ( const [TMap](API\Runtime\Core\Containers\TMap)< [FPrimaryAssetId](API\Runtime\CoreUObject\UObject\FPrimaryAssetId), [UE::AssetRegistry::EDependencyProperty](API\Runtime\CoreUObject\Misc\UE__AssetRegistry__EDependencyPr-) > & Managers, [TOptional](API\Runtime\Core\IO\TOptional)< TPair< [FPrimaryAssetId](API\Runtime\CoreUObject\UObject\FPrimaryAssetId), [FPrimaryAssetId](API\Runtime\CoreUObject\UObject\FPrimaryAssetId) >> * OutConflictIds ) const